ユーザーがいいねを押した投稿を一覧にしてに表示したい。

初心者です。railsでツイッターのようなものを作っています。そしていいねした投稿をusers/fav_posts.heml.erbに表示したいと考えています。そこでfav_postsなどを定義して進めていくとエラーが出てしまいどこがおかしいのかわからないようのなってしまいました。このエラーの箇所がおかしいのかfav_postsメソッドがもともとおかしいのか、、

発生している問題・エラーメッセージ

エラーメッセージ　[リンク内容](https://gyazo.com/7ec2b8751ea873ef4002a3b6f9309427)

user.rb (model)

class User < ApplicationRecord
  before_save { self.email.downcase! }
  validates :name, presence: true, length: { maximum: 50 }
  validates :email, presence: true, length: { maximum: 255 },
                    format: { with: /\A[\w+\-.]+@[a-z\d\-.]+.[a-z]+\z/i },
                    uniqueness: { case_sensitive: false }
  has_secure_password
  
  has_many :microposts
  has_many :relationships
  has_many :followings, through: :relationships, source: :follow
  has_many :reverses_of_relationship, class_name: 'Relationship', foreign_key: 'follow_id'
  has_many :followers, through: :reverses_of_relationship, source: :user
  has_many :favorites
  has_many :fav_posts, through: :favorites, source: :micropost
  
  def follow(other_user)
    unless self == other_user
      self.relationships.find_or_create_by(follow_id: other_user.id)
    end
  end
  
  def unfollow(other_user)
    relationship = self.relationships.find_by(follow_id: other_user.id)
    relationship.destroy if relationship
  end
  
  def following?(other_user)
    self.followings.include?(other_user)
  end  
  
  def feed_microposts
    Micropost.where(user_id: self.following_ids + [self.id])
  end 
  
  def favorite(micropost)
    self.favorites.find_or_create_by(micropost_id: micropost.id)
  end
  
  def unfavorite(micropost)
    favorite = self.favorites.find_by(micropost_id: micropost.id)
    favorite.destroy if favorite
  end
  
  def fav_post?(micropost)
    self.fav_posts.include?(micropost)
  end
  
  def feed_fav_posts
    Micropost.where(user_id: self.fav_post_ids )
  end  
 
 
 end

users_controller.rb

class UsersController < ApplicationController
  before_action :require_user_logged_in, only: [:index, :show, :followings, :followers]
  def index
    @users = User.order(id: :desc).page(params[:page]).per(25)
  end

  def show
    @user = User.find(params[:id])
    @microposts = @user.microposts.order(id: :desc).page(params[:page])
    counts(@user)
  end

  def new
    @user = User.new
  end

  def create
    @user = User.new(user_params)
    
    if @user.save
      flash[:success] = "ユーザーを登録しました。"
      redirect_to @user
    else
      flash.now[:danger] = "ユーザーの登録に失敗しました。"
      render:new
    end
    
  end
  
  def followings
    @user = User.find(params[:id])
    @followings = @user.followings.page(params[:page])
    counts(@user)
  end
  
  def followers
    @user = User.find(params[:id])
    @followers = @user.followers.page(params[:page])
    counts(@user)
  end  
  
  def fav_posts
    @user = User.find(params[:id])
    @fav_posts = @user.fav_posts.page(params[:page])
  end  
    
  private
  
  def user_params
    params.require(:user).permit(:name, :email, :password, :password_confirmation)
  end  
end

fav_posts.html.erb

<div class="row">
    <aside class="col-sm-4">
        <div class="card">
            <div class="card-header">
                <h3 class="card-title"><%=@user.name%></h3>
            </div>
            <div class="card-body">
                <img class="rounded img-fluid" src="<%= gravatar_url(@user,{size:500})%>" alt="">
                
            </div>
        </div>

    </aside>
    <div class="col-sm-8">
        <ul class="nav nav-tabs nav-justified mb-3">
            <li class="nav-item"><a href="<%= user_path(@user)%>" class="nav-link <%= current_page?(user_path(@user))%>">Microposts <span class="badge badge-secondary"><%= @count_microposts %></span></a></li>
            <li class="nav-item"><a href="<%= followings_user_path(@user) %>" class="nav-link <%="active" if current_page?(followings_user_path(@user))%>">Followings <span class="badge badge-secondary"><%= @count_followings %></span></a></li>
            <li class="nav-item"><a href="<%= followers_user_path(@user) %>" class="nav-link <%= 'active' if current_page?(followers_user_path(@user)) %>">Followers  <span class="badge badge-secondary"><%= @count_followers %></span></a></li>
            <li class="nav-item"><a href="<%= fav_posts_user_path(@user) %>" class="nav-link <%= "active" if current_page?(fav_posts_user_path(@user))%>">Favorites <span class="badge badge-secondary"><%= @count_favorites %></span></a></li>

        </ul>
        <%= render "micropposts/microposts", microposts: @fav_posts %>
    </div>
</div>

_microposts/microposts

<ul class="list-unstyled">
  
<% microposts.each do |micropost| %>

    <li class="media mb-3">
      <img class="mr-2 rounded" src="
<%= gravatar_url(micropost.user, { size: 50 }) %>
" alt="">
      <div class="media-body">
        <div>
          
<%= link_to micropost.user.name, user_path(micropost.user) %>
 <span class="text-muted">posted at 
<%= micropost.created_at %>
</span>
        </div>
        <div>
          <p class="mb-0">
<%= micropost.content %>
</p>
        </div>
        <div>
          
<% if current_user == micropost.user %> 
<%= link_to "Delete", micropost, method: :delete, data: { confirm: "You sure?" }, class: 'btn btn-danger btn-sm' %>

<% end %>
<%=render "favorites/favorite_button", micropost: micropost %>
          


        </div>
      </div>
    </li>
  
<% end %>

  
<%= paginate microposts %>

</ul>

お願いいたします！